/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.webapi.openapi;

import static java.util.stream.Collectors.toList;
import static org.hisp.dhis.webapi.openapi.Property.getProperties;

import org.hisp.dhis.common.OpenApi;
import org.hisp.dhis.common.PrimaryKeyObject;

/**
 * Home for {@link Api.SchemaGenerator} implementations.
 *
 * @author Jan Bernitt
 */
public interface SchemaGenerators {

  Api.SchemaGenerator UID =
      (endpoint, source, args) -> {
        Class<?> uidOf = args.length == 0 ? endpoint.getEntityType() : args[0];
        if (!PrimaryKeyObject.class.isAssignableFrom(uidOf))
          throw new IllegalArgumentException(
              "Not an identifiable object type: %s\n\tin endpoint %s"
                  .formatted(uidOf, endpoint.getSource()));
        return Api.Schema.ofUID(uidOf);
      };

  Api.SchemaGenerator PROPERTY_NAMES =
      (endpoint, source, args) -> {
        Class<?> ofType = args.length == 0 ? endpoint.getEntityType() : args[0];
        return Api.Schema.ofEnum(
            OpenApi.PropertyNames.class,
            ofType,
            getProperties(ofType).stream().map(Property::getName).collect(toList()));
      };
}
